What is the Greatest Common Factor of 42207 and 42218?

Greatest common factor (GCF) of 42207 and 42218 is 11.

GCF(42207,42218) = 11

We will now calculate the prime factors of 42207 and 42218, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 42207 and 42218.

How to find the GCF of 42207 and 42218?

We will first find the prime factorization of 42207 and 42218. After we will calculate the factors of 42207 and 42218 and find the biggest common factor number .

Step-1: Prime Factorization of 42207

Prime factors of 42207 are 3, 11, 1279. Prime factorization of 42207 in exponential form is:

42207 = 3¹ × 11¹ × 1279¹

Step-2: Prime Factorization of 42218

Prime factors of 42218 are 2, 11, 19, 101. Prime factorization of 42218 in exponential form is:

42218 = 2¹ × 11¹ × 19¹ × 101¹

Step-3: Factors of 42207

List of positive integer factors of 42207 that divides 42207 without a remainder.

1, 3, 11, 33, 1279, 3837, 14069

Step-4: Factors of 42218

List of positive integer factors of 42218 that divides 42207 without a remainder.

1, 2, 11, 19, 22, 38, 101, 202, 209, 418, 1111, 1919, 2222, 3838, 21109

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 42207 and 42218. The biggest common factor number is the GCF number.
So the greatest common factor 42207 and 42218 is 11.

Also check out the Least Common Multiple of 42207 and 42218